Member of Technical Staff – Post-Training, Reinforcement Learning, Generalization

🕒 Ontem

🏄 California, New York, +1 estados a mais – Remoto

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💵 CA$295.000 - CA$535.000 / ano

⏰ Tempo Integral

🔴 Especialista

🖥 Engenheiro de Software

🦅 Patrocina Visto H1B

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👻 Score fantasma 21%

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🗣️🇺🇸🇬🇧 Inglês obrigatório

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Cohere

11 - 50 funcionários

🤖 Inteligência Artificial

🏢 Corporativo

☁️ SaaS

Artificial Intelligence • Enterprise • SaaS

A Cohere é uma plataforma de IA líder, fornecendo às empresas modelos de linguagem avançada e um espaço de trabalho integrado projetado para eficiência e segurança. Com uma família de modelos generativos e de recuperação de alto desempenho, a Cohere permite que as organizações simplifiquem fluxos de trabalho, melhorem a segurança dos dados e descubram insights em diversas indústrias por meio de capacidades multilingues. Seu foco em soluções de IA personalizadas garante a proteção de dados críticos, facilitando a integração perfeita nos processos organizacionais existentes.

Descrição

• Train large language models with reinforcement learning • Develop methods that improve generalization beyond the training distribution • Design training recipes, environments, and evaluations to assess learned skills • Design, run, and analyze large-scale RL post-training experiments, including RLHF and RL from verifiable rewards • Research reward design, environment and task diversity, curricula, and regularization • Build held-out evaluations for unseen tasks, domains, and formats • Detect reward hacking and benchmark overfitting • Diagnose training dynamics and failure modes, including instability, reward over-optimization, and capability regressions • Turn successful research into robust, reproducible production-model training recipes • Collaborate with post-training data infrastructure, evaluation, and pre-training teams

🎯 Requisitos

• Strong research and software engineering skills, with hands-on experience training LLMs • Experience applying reinforcement learning to LLMs, such as PPO, GRPO, RLHF, or RLVR, ideally at scale • Track record of work on generalization, robustness, or distribution shift through publications or shipped models • Rigorous experimental practice, including clean ablations, careful controls, and sound conclusions from noisy results • Experience with distributed training, such as JAX, PyTorch, FSDP, or Megatron, is a plus • Excellent communication skills • Deep understanding of data quality principles and best practices • Willingness to dive deep into data and assess dataset quality and impacts on model training outcomes

🏖️ Benefícios

• Offers equity • Weekly lunch stipend of $75/£75 or equivalent in local currency • Full health and dental benefits • Separate budget for mental health • RRSP matching, 401K, Pension Scheme • 100% parental leave top-up for up to 6 months, for either parent • Annual arts and culture, fitness/wellness, quality time, and workspace improvement benefits • Education and learning stipend for conferences, courses, and coaching • 6 weeks of paid vacation (30 working days) • Budget for traveling to other offices if remote • Annual company offsite • Daily lunch program, snacks, and regular community and social events for office-based employees • Co-working benefit for employees not near an office • $500 home office stipend

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